DISABLE_UNKNOWN_FROM_SYNC 1780 chrome/browser/extensions/extension_service.cc disable_reasons == Extension::DISABLE_UNKNOWN_FROM_SYNC) { DISABLE_UNKNOWN_FROM_SYNC 1786 chrome/browser/extensions/extension_service.cc disable_reasons &= ~Extension::DISABLE_UNKNOWN_FROM_SYNC; DISABLE_UNKNOWN_FROM_SYNC 404 chrome/browser/extensions/extension_sync_service.cc id, Extension::DISABLE_UNKNOWN_FROM_SYNC);